The State Department's travel advisory levels and risk letters, explained

A State Department travel advisory combines a level from one to four with letters that say why, and the two can tell different stories. China and Eritrea are both Level 2, the second-lowest level, yet each carries a "D" warning that the government may wrongfully detain Americans.

The State Department's travel advisories page assigns every destination a level, a set of risk indicators and a date, and the six parts below explain how to read each one, using advisories as they stood on October 23, 2026.

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The department introduced the system in 2018, and every destination carries one of four levels, shown in a color at the top of its page. Level 1, "Exercise normal precautions," is the lowest, and the department notes there is some risk in any international travel and that conditions abroad may differ from those in the United States. Level 2, "Exercise increased caution," flags increased risks that the advisory then describes.

Level 3, "Reconsider travel," points to serious risks to safety and security. Level 4, "Do not travel," is the highest and is reserved for life-threatening risks. At that level the department says the U.S. government may have very limited or no ability to help, including in an emergency, and it advises Americans not to go or to leave as soon as it is safe.

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Next to the level, an advisory can list letters that explain why it was assigned. Crime (C) means an increased risk of violent or organized crime, and local police may not be able to help. Terrorism (T) means specific threats exist or attacks have recently occurred. Unrest (U) covers political, economic, religious or other instability, including protests or armed conflict that could block access to help or evacuation. Health (H) means poor medical infrastructure, a disease outbreak or another health crisis could limit lifesaving care.

Natural Disaster (N) covers the aftermath of a disaster or an ongoing risk such as active volcanoes or frequent earthquakes. Time-limited Event (E) is for short-term events such as elections or sporting events. Kidnapping or Hostage-Taking (K) warns that criminals or terrorists may seize Americans to force someone, usually the U.S. government, to act. Wrongful Detention (D) warns of detention by the destination's government. Other (O) covers risks that fit none of the above.

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Level 2 sounds mild, but it does not mean the letters are. China has been Level 2 since November 2024, and on October 19, 2026 the department added the D, saying Americans are at serious risk of wrongful detention there. Eritrea is also Level 2 with a D, and Nicaragua carries one at Level 3. Even Level 1 advisories can carry letters: Malaysia lists K, Thailand lists U and Georgia lists U, C and O.

The difference between K and D matters. K warns of kidnapping or hostage-taking by non-state actors such as criminals or terrorists, while D warns that a foreign government itself may detain an American, often to gain political leverage, according to the department's Overseas Security Advisory Council. The department added the D on July 19, 2022, and seven countries carry it today.

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Below the level and letters sits a summary, followed by sections on specific risks. China's advisory, for example, lists the national security laws that give officials broad discretion to detain foreigners, a section on exit bans, and a separate section on Xinjiang and the Tibetan areas, citing extra security measures and limited consular services. Advisories also include an "If you decide to travel" list, such as enrolling in the Smart Traveler Enrollment Program and keeping your passport with you.

Some places have their own advisories. China's page points to separate ones for Hong Kong and Macau, each Level 2 with the "Other" indicator, and the department lists Gaza at Level 4 while Israel and the West Bank are Level 3. A separate travel guidance section, with its own date, covers entry and exit rules, local laws, health, transportation and embassy contacts. China's guidance, for example, is dated March 12, 2026, while its advisory is dated October 19.

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The "date issued" shows when the advisory was last reissued. The department says it reviews Levels 1 and 2 every 12 months and Levels 3 and 4 at least every six months, and that it updates an advisory any time conditions change substantially. The advisory history at the bottom of each page lists every reissue and says what changed. China's shows that on October 19, 2026 the level stayed the same, the wrongful detention indicator was added and the summary was updated.

Dates on the list vary widely. France was reissued October 21, 2026, while North Korea, at Level 4, shows April 29, 2025 and Eritrea, at Level 2, shows July 31, 2023. An older date does not mean no one is watching, since embassies post security alerts, such as one from Asmara on October 9, 2026, that can carry newer information than the advisory itself.